Product for providing membrane elements and manufacturing method

Abstract

The invention relates to a product for providing membrane elements, comprising: a carrier film; and a membrane film, at least comprising: a support layer; and a membrane layer; the membrane film is releasably coupled to the carrier film; and the membrane film has a plurality of substantially discrete membrane elements. The invention also relates to a corresponding manufacturing process.

1 . A product for providing membrane elements comprising:
 a carrier film; and   a membrane film at least comprising:
 a support layer; and 
 a membrane layer; 
   wherein the membrane film is releasably coupled to the carrier film; and   wherein the membrane film comprises a plurality of substantially discrete membrane elements.   
     
     
         2 . The product according to  claim 1 , wherein the support layer is arranged between the carrier film and the membrane layer. 
     
     
         3 . The product according to  claim 1 , wherein the membrane layer comprises a porous, absorbent material; and/or
 wherein the membrane layer comprises:   cellulose nitrate and/or cellulose acetate, and/or polysulfone, in particular polyethersulfone, PESU.   
     
     
         4 . The product according to  claim 1 , wherein the membrane layer has a thickness of about 50 μm to about 200 μm and/or
 wherein the carrier film comprises a carrier material having a silicone coating. 
 
     
     
         5 . The product according to  claim 1 , wherein the carrier film has a thickness of approximately 100 μm to approximately 300 μm; and/or
 wherein the support layer has a thickness of about 10 μm to about 20 μm. 
 
     
     
         6 . The product according to  claim 1 , wherein the support layer of the membrane film is releasably coupled to the carrier film by means of adhesive and/or
 wherein the membrane layer of the membrane film is coupled to the support layer of the membrane film by means of adhesive.   
     
     
         7 . The product according to  claim 6 , wherein the adhesive comprises a contact adhesive and/or a melt adhesive. 
     
     
         8 . The product according to  claim 6 , wherein the adhesive has a layer thickness of about 8 μm to about 20 μm. 
     
     
         9 . The product according to  claim 1 , wherein the membrane elements have an at least partially structured surface. 
     
     
         10 . The product according to  claim 1 , wherein the membrane elements have one or more structures in the membrane layer. 
     
     
         11 . The product according to  claim 10 , wherein the one or more structures in the membrane layer were formed by at least partial ablation of the membrane layer; and/or
 wherein a structure forms one or more flow lines for guiding a fluid and/or controlling a fluid flow; and/or   wherein a structure forms one or more mixing and/or reaction zones.   
     
     
         12 . A method for producing a product for providing membrane elements, comprising the steps:
 providing a support layer;   releasably coupling a carrier film to a first side of the support layer;   coupling a membrane layer to a second side of the support layer;   forming a plurality of membrane elements by at least partial ablation of the support layer and the membrane layer.   
     
     
         13 . The method according to  claim 12 , wherein the membrane elements are formed and/or structured by means of laser cutting. 
     
     
         14 . The method according to  claim 12 , further comprising the step:
 applying an adhesive to the support layer and/or to the membrane layer to couple the support layer to the membrane layer; and/or   applying an adhesive to the support layer and/or the carrier film to releasably couple the support layer to the carrier film.